Takajo Zett appears before Masaki Kuzuha near the beginning of the game after Takaharu's younger sister Shou Ougi is cursed by the Dark Slumber. He tells Masaki that a cure can be found in the Makai and he must go back to the construction site where it happened to find a portal to the demon world.

Hawk is a S-Rank BattleNet opponent who appears after winning 27 S-Rank Battles. His profile reveals that he is the human form of a demon from the Deep Hole. Hawk takes his true form after giving the second demon to the protagonist. He uses his true form Zebul, his brothers Verrito and Phegor, and the rest are random demons in each battle. After 3 defeats he gives a Vrtra, 9 defeats a Indra, and 13 defeats a Bibisana.